Radiator for automobiles



W. B. COWAN RADIATOR FOR AUTOMOBILES Filed May 5', 1919 3 Sheets-Sheet 1f 1 W MU 15 Dec. 11, 1923. 1,477,209

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Dec. 11,1923. 1,477,209

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vv. El (ZC VVl\hl RADIATOR FOR AUTOMOBILES Filed May 5, 1919SSheots-Sheet s w T/vA-ssEa- //v VE/V TOR,-

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Fatented Dec. ll, 1923.

rare eras erries;

WILLIS BYRON coWAn, or COLORADO SPRINGS, coma-she, nssrenos oi-TorinFOUR-T3510 enonen HENRY DE voen, or COLOR-ADO ere-Ines, cotoaeno.

RADIATOR FOR AUTOIVZOBILES.

' Application filed May 5,

T uZZ-wizom it may concern:

Be it known that I, lVILLIs BYRON Conn-xiv, acitizen of the UnitedStates, residing at Colorado Springs, inthe county of El Paso and Stateof Colorado, have invented a new. and Improved Radiator for Automobiles,of which the followingis a specification. H

One object of iny invention is to provide 1 a radiator for automobilesciances of bursting by freezing are minimized. A second object of myinvention is to haveallsoldered joints exposed enter orly so that shouldthe radiator, from any cause, spring a leak the seams may-beaccessible-for mending without tearing the radiator to pieces to exposethe leaks.

I attain these objects bythe mechanism illustrated in the accompanyingdrawings,

in which- Fig. l is a diagrammatic elevation of the front of theradiator. Fig. 2 is an elevation of one of the spiral fins shown inFigs. 3 and 5. Fig. 3 is detailed elevation oi part of the radiatorshowing some of the spiral fins, shown in Fig. 2, inserted. Fig. l is aperspective of a part of one of theair tubes shown in Fig. and shown indetail in 5. Fig. 5 is a perspecti e in detail of one or".

the air tubes shown in Fig. 8 and in Fig. T

on the line 8 8. Fig. 6 is a sectional eleva tion of T on thelineS-S.Fig. 7 is detail front elevation of part of the radiator shown inFig. 1. 8 is a perspective detail of part of an air tube 1, and part ofthe face plate 3. I

Similar numerals refer to similar parts throughout the several views.

The air tubes 1, 1 passing from front to rear of the radiator, thespiral fins 2, 2 lo-' cated in the said air tubes, the'front' raceplate3, the rear face-plate i and the enclosing radiator shell member 7constitute the principal parts and framework of the said radiator. Thebody oi the tube 1 is adapted to fit the perforation 12 in the faceplates 3 and at. The flange 6 on the tube 1 is adapted to lie upon theexterior edge of the. perforation 12 and is soldered the oint 5. lheflange 11 on the said face-plate is adapted to be soldered .to theside-plates 10 of the radiator shell 7. The horizontal expandibleconnecting ribs 8 and the upright expandible connecting ribs 9 of theface-plates 3 wherein the and t admit of expansion of 1919. Serial No.294,912.

the said faceplates adapted toequalthe e21 I pansion of the water intheradiator when. ireezing as shown by the convex surfaces of saidribs,which.in their aggregate form the I face plates, at 9- in Fi 2,.and at 8in Fig,

4, showingthe curved einbossedlribs susceptible of expansion. Theflattenedtubes l;

. admit of a great degree-ofcompression and are therefore adapted torelieve. strains in other dlrect ons. The sp1ral fins 2, 2- are placedin the air tubes 1, 1 to transmit heat from the walls of the said airtubes, andarel and are flanged as shown at G, 6, outside of the face"plates and are soldelred between the said langes and the outs de"oi theface plates. Ittvil'l be noted that thereareno internal seams, that alljoints 5, 13 areex ternal and accessible for mending.

-..ving described. my. invention, what I claim and desire to secure byLetters Patent is: j

1. In a radiator of the class described, a combination of front and rearexp-audible face-plates, a plurality of flattened compressible air tubessecured to and extending thru both upright and horizontalcorrugations'in said race plates, and spirally "formed fiat lineextending through said air tubes.

2. Y In an automobile radiator of the class described, provided towithstand freezing and heating, the combination of a front plate and aback plate, having registering holes injthe two said plates provided toreceive the ends of connecting air-tubes, fiattcned compressible airtubes passing through said holes and connecting said' plates, impressedembossed ribs in said plates extending uprightly and transverselyacros's said plates between the termini of said tubes, and provided toallow the expansion of said plates by frost without bursting the plates,outwardly turned flanges on the ends of said tubes provided to form atight head-for aid holes and to form a recess for solder, spirallyit'orined flat fins extend: ing through said'tubes and attached to thesides thereof and provided to transmit the heat of the tubes to theatmosphere.

said. face-plates andat an angle thereto 3. An automobile radiatorcomprising a face plate and a back plate of the same size and providedwith an equal number of registering elongated slot holes, a multiplicityextending across said plates in transverse directions between saidtubesand provided to allow the expansion of said plates without rupture, andspirally formed fiat fin members extending through said tubes andprovided to transmit heat from said tubes to the engaging air. Y

4. In an automobile radiator of the class described, the combination of'a face plate and a back plate, an enclosing shell member tightlysecured atits enclasping edges to the edges of said plates and forming achamber between them, a multiplicity of flattened seamless tubes passingthrough both of said plates and uniting them, outwardly projectingturned flanges on the ends of the tubes engaging said plates and formaing a head'and a recess for solder, deeply impressed curved embossedribs extending across said plates in transverse directions between saidtubes and provided to allow the expansion of said plates withoutrupture,

and spirally formed fiat'fin members extending through said tubes andprovided to transmit heat from said tubes to the passing air.

5. In an automobile radiator of the class them, a multiplicity offlattened seamless tubes of metal extending through registerspira'llytwisted flat fin members extending through said tubes and provided toengage the cooling air to conduct the heat from said tubes, outwardlyextended flange members 'ing holes in said plates, a multiplicity offormed on the ends of the tubes and forced against the outer surfaces ofsaid plates and Y forming a recess for solder, and a multiplicity ofimpressed embossed ribs in said plates and extending in transversedirections to each other between said tubes and provided to allow forexpansion without a rupture.

Witness my 1919.

hand 29 day of April,

Witnesses:

JOHN N. RICHARDS, GEO. DE VoRE.

wiLLrs BYRON oowAn, A

